Class ImmutableSet<E>

    • Method Detail

      • of

        public static <E> ImmutableSet<E> of()
        Returns the empty immutable set. Preferred over Collections.emptySet() for code consistency, and because the return type conveys the immutability guarantee.
      • of

        public static <E> ImmutableSet<E> of(E element)
        Returns an immutable set containing element. Preferred over Collections.singleton(T) for code consistency, null rejection, and because the return type conveys the immutability guarantee.
      • of

        public static <E> ImmutableSet<E> of(E e1,
                                             E e2)
        Returns an immutable set containing the given elements, minus duplicates, in the order each was first specified. That is, if multiple elements are equal, all except the first are ignored.
      • of

        public static <E> ImmutableSet<E> of(E e1,
                                             E e2,
                                             E e3)
        Returns an immutable set containing the given elements, minus duplicates, in the order each was first specified. That is, if multiple elements are equal, all except the first are ignored.
      • of

        public static <E> ImmutableSet<E> of(E e1,
                                             E e2,
                                             E e3,
                                             E e4)
        Returns an immutable set containing the given elements, minus duplicates, in the order each was first specified. That is, if multiple elements are equal, all except the first are ignored.
      • of

        public static <E> ImmutableSet<E> of(E e1,
                                             E e2,
                                             E e3,
                                             E e4,
                                             E e5)
        Returns an immutable set containing the given elements, minus duplicates, in the order each was first specified. That is, if multiple elements are equal, all except the first are ignored.
      • of

        public static <E> ImmutableSet<E> of(E e1,
                                             E e2,
                                             E e3,
                                             E e4,
                                             E e5,
                                             E e6,
                                             E... others)
        Returns an immutable set containing the given elements, minus duplicates, in the order each was first specified. That is, if multiple elements are equal, all except the first are ignored.
        Since:
        3.0 (source-compatible since 2.0)
      • copyOf

        public static <E> ImmutableSet<E> copyOf(Collection<? extends E> elements)
        Returns an immutable set containing each of elements, minus duplicates, in the order each appears first in the source collection.

        Performance note: This method will sometimes recognize that the actual copy operation is unnecessary; for example, copyOf(copyOf(anArrayList)) will copy the data only once. This reduces the expense of habitually making defensive copies at API boundaries. However, the the precise conditions for skipping the copy operation are undefined.

        Throws:
        NullPointerException - if any of elements is null
        Since:
        7.0 (source-compatible since 2.0)
      • copyOf

        public static <E> ImmutableSet<E> copyOf(Iterable<? extends E> elements)
        Returns an immutable set containing each of elements, minus duplicates, in the order each appears first in the source iterable. This method iterates over elements only once.

        Performance note: This method will sometimes recognize that the actual copy operation is unnecessary; for example, copyOf(copyOf(anArrayList)) should copy the data only once. This reduces the expense of habitually making defensive copies at API boundaries. However, the precise conditions for skipping the copy operation are undefined.

        Throws:
        NullPointerException - if any of elements is null
      • copyOf

        public static <E> ImmutableSet<E> copyOf(Iterator<? extends E> elements)
        Returns an immutable set containing each of elements, minus duplicates, in the order each appears first in the source iterator.
        Throws:
        NullPointerException - if any of elements is null
      • copyOf

        public static <E> ImmutableSet<E> copyOf(E[] elements)
        Returns an immutable set containing each of elements, minus duplicates, in the order each appears first in the source array.
        Throws:
        NullPointerException - if any of elements is null
        Since:
        3.0
      • equals

        public boolean equals(Object object)
      • hashCode

        public int hashCode()